CAJ | 학술논문

64 km/h 40%正面可变形壁障偏置碰撞是中国新车评价规则（C-NCAP）和欧洲新车评价规则（Euro-NCAP）测试重点考核的项目。为解决某车型在这种碰撞中存在的踏板侵入量严重超标问题，该文使用整车碰撞仿真模型，计算了踏板安装区域的变形程度，分析了机舱纵梁的变形模式，优化了车身结构，增大机舱左纵梁的吸能效果和优化变形模式，加强中央通道区域的强度。仿真验证的结果表明：优化后碰撞中，油门踏板后移量降低了48.5%，上移量降低了29.1%；降低了踏板安装区域结构的变形，降低了踏板侵入量。因此，该优化方案解决了踏板侵入量超标问题，提升了整车安全性能。
64 km/h 40%정면가변형벽장편치팽당시중국신차평개규칙（C-NCAP）화구주신차평개규칙（Euro-NCAP）측시중점고핵적항목。위해결모차형재저충팽당중존재적답판침입량엄중초표문제，해문사용정차팽당방진모형，계산료답판안장구역적변형정도，분석료궤창종량적변형모식，우화료차신결구，증대궤창좌종량적흡능효과화우화변형모식，가강중앙통도구역적강도。방진험증적결과표명：우화후팽당중，유문답판후이량강저료48.5%，상이량강저료29.1%；강저료답판안장구역결구적변형，강저료답판침입량。인차，해우화방안해결료답판침입량초표문제，제승료정차안전성능。
The 64-km/h 40%offset deformable barrier (ODB) frontal crash is an important item in the China New Car Assessment Program (C-NCAP) and inthe Euro-NCAP test. This paper calculates the deformation at pedal ifxing area using a vehicle crash simulation model and analyzes deformation mode of side rail in engine room to solve the excessive pedal intrusion into a vehicle in 40%offset crash, and gives an optimized solution to vehicle body structure. The simulation validation results show that acceleration pedal reward is reduced by 48.5%with the upward being reduced by 29.1%, therefore, center tunnel area strength is enhanced, and pedal ifxing area structural deformation is lessened incrashes,which improves the energy-absorbing effect of left side rail in engine room, perfects deformation mode, and reduces pedal intrusion. Therefore, the optimized solution solves excessive pedal intrusion of this vehicle, therefore improving vehicle safety.